The game is divided roughly into 5 eras. Access to different maps and areas of increasing power and technology is dependent on the character's level.
Levels 0-1 (Introduction)
Collapse - As things fall apart
Levels 1-20
Decentralization - Immediate post-apocalypse on the station (salvage tech)
Levels 21-40
Shamanist - Low magic
Levels 41-60
Odyssey - Early tool design (low tech)
Levels 61-80
Advanced - High tech
Levels 81-100
Revelation - High tech and high magic